Underclearer for spinning frames



July 12, 1927.

w. A. CARPENTER UNDERCLEARER FOR SPINNING FRAMES Filed-Oct. 2. 1926 Patented July 12, 1927.

PATENT OFFICE.

WILLIAM ANDRE! CARPENTER, OF HABTSVILLE, SOUTH CAROLINA, ASSIGNOR OF ONE-HALF TO CHARLES H. CAMPBELL.

UN DERGLEARER FOR SPINNING FRAMES.

Appligation filed October 2, 1926; Serial No. 139,127.

7 This invention relates to underclearers for spinning frames and resides more particularly in improvements in the construction of the underclearer-rolls.

6 The object is to provide a roll for use in connection with spinning machines of various kinds for drawing and rewinding yarns, etc., said roll being used in coaction with drawing'rolls in a well known manner 10 to remove loose waste or lint from the draw or feed roll or rolls and maintain the latter in a clean condition for uniform action on the yarns.

Another objectis to provide a roll of this 16 character which will take the place of the old style cloth covered roll which, by constant contact with "the steel draw roll, soon becomes damaged especially at the ends of the cloth covering, and requiring the fre- 20 quent replacement of the latter, such replacement necessitating the removal of the roll from the machine and soaking the same in hot water to remove the cover and glue, or by cutting and scraping the same with a knife to remove the cover and then refitting and gluing the new cover thereon, either of which operations soon-renders the roll unfit for use.

A further object is to provide a rollffor underc-learing purposes which has a fibrous coating for the proper treatment of the yarn lint or waste, saidcoating being readily removable from the wooden roll proper, when it is desired to renew the same after becoming worn, and to provide hard fiber end members at the ends of the roll for contacting with the steel draw roll and preventing undue wear of the coating, the entire device being constructed in a simple manner and of few parts to provide a strong and durable and light weight roll which may be easily and cheaply manufactured.

A full and complete understanding of the invention may be obtained from a con- 40 sideration of the following detailed description, taken in connection with the accompanying drawing forming a part of this specification, it being understood that while the drawing shows a practical form of the so invention, the latter is not to be confined to strict conformity with the showing thereof, but may be changed or modified, so long as such changes or modifications mark no material departure from the salient features of the invention, as specifically pointed out in the appended claims. I

'In the drawing, in which similar reference characters designate corresponding parts throughout the several figures Figure 1 is a side elevation of the im proved roll.

Figure 2 is a longitudinal section through the same.

Figure 8 is a transverse section taken on the line 33 of Figure 2.

Figure 4 is a detail perspective view of one of the end discs forming part of the structure.

Figure 5 is a detail perspective view of one of the end trunnions of the roll;

The invention comprises 'a' roller 1 which may be formed of a suitable strong and light wood which will retain a straight, concentric form during the more or less rough usage to which the roller is subjected during operation.

Surrounding the roller 1 and extending from end to end thereof, is a continuous, seamless tubular sleeve or-casing '2 which is preferably formed of heavy paper or paste- -board and having .an internal diameter to snugly fit the roller 1 and be fric-tionally held thereon to turn with the sameat all times.

The roller 1, together with the surroundingsleeve 2, are adapted to be mounted, by means of end trunnions 3, in suitable bearings of the machine in which the improved roller is to be used, the said trunnions preferably having their inner ends 4 formed into points to facilitate their being driven into the exact centers of the ends of the wooden roller and the shank port-ions 5 of the trunnions are preferably notched or serrated to prevent their being accidentally withdrawn from their positions in the ends of the roller.

Mounted on the trunnions 3, at their bases, are outstanding, circular flanges 6 which may be formed integrally with the trunnions or secured to the same in any well known manner such as by welding or upsetting the metal of the shank to hold the flange and prevent same from longitudinal or rotary movement on the trunnion.

In order to protect the terminal portions of the sleeve or casing from becoming worn by the constant bearing against the steel roller or'rollers of the spinning frame or other machine (not shown), the roller 1 is provided, at each end, with a hard fiber disc or head 7, the peripheral margins of which are exactly flush with the exterior diameter of the ends of the tubular casing 2 and the entire sleeve, together with the end discs, are adapted to bear throughout, against the said steel roller, the fibrous nature of said sleeve serving to gather and remove the strands and broken ends of the yarn from the steel roller which serves as a drawing roll to draw the threads along, while the hard fiber discs ateach end prevent undue wear of the sleeve.

The circular flanges 6 are adapted to bear against the outer faces of the hard fiber discs 7 at each end of the roller and when the shanks are driven into the ends thereof the discs are rigidly held in position by the flanges and, in turn, the peripheral contact of the discs, at their inner faces, serves to prevent any longitudinal movement of the sleeve upon the roller, while the aforesaid frictional engagement of the sleeve upon the roller prevents any relative rotary movement between the two members.

lVhen it becomes necessary to renew a frayed or worn out sleeve, it is onlv necessary to pry the trunnions loose from the ends of the wooden roller 1, by means of the flanges 6, when one or both of the discs may be removed and the sleeve forced off the roller and a new one placed thereon without damaging the roller which may thus serve indefinitely for continued use.

From the foregoing it will be seen that a simple and cheaply constructed underclearing roll for spinning frames or other similar machines has been provided which may readily have its bearing surface renewed without warping, twisting or other "ise damaging the supporting wooden roller which ordinarily results where the usual cloth covering is employed.

hat is claimed is 1. An under clearer for spinning frames comprising a roller, a fibrous sleeve co-extensive with the roller and adapted to surround the same,-trnnnions projecting from the ends of the roller, and fibrous end discs mounted on the trunnions and abutting the ends of the roller and sleeve.

2. An under clearer for spinning frames comprising a wooden roller, a heavy paper tubular sleeve snugly fitting around the roller from end to end thereof and adapted to rotate with the same, metal trunnions adapted to be driven into the ends'of the.

roller in axial relation and having annular flanges intermediate their ends, and end discs formed of fiber and mounted on the trunnions between the flanges thereof and the ends of the roller, said discs being of equal diameter with the sleeve.

3. An under clearer for spinning frames comprising a roller, a tubular sleeve surrounding the entire roller and frictionally engaging the same, end discs of equal dithe same against the ends of the sleeve and roller.

In testnnony that I claim the foregoing as my own, I have hereto aflixed my signature.

WVILLIAM ANDREW CARPENTER.

ameter with the sleeve and having central 

